Product overview
Description
The STBB2 is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 4.5 V starting from input voltage from 2.4 V to 5.5 V. The device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for single Li-Ion, multi-cell alkaline or NiMH applications where the output voltage is within the battery voltage range. The low-RDS(on)N-channel and P-channel MOSFET switches are integrated and help to achieve high efficiency. The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage from either lower power consumption or best dynamic performance. The bypass function allows the battery power saving. In this operating mode, the high-side switches are turned on so that the output voltage is equal to the input voltage; in this condition the current consumption is reduced to a maximum of 5 μA. The device also includes soft-start control, thermal shutdown, and current limit. The STBB2 is packaged in Flip Chip 20 bumps with 0.4 mm pitch.
-
All features
- Operating input voltage range from 2.4 V to 5.5 V
- ± 2% output voltage tolerance over process and temperature variations
- Bypass power save function
- Selectable output voltage with dedicated VSEL pin
- Very fast line and load transients
- 2.5 MHz switching frequency
- Power save mode (PS) at light load
- Typical efficiency higher than 90%
- 50 μA max. quiescent current
- Flip Chip 20 bumps 0.4 mm pitch 2.1 x 1.8 mm
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Power Management Design Center
Power Supply Design Tool
Power Management Design Center
LED Lighting Design Tool
Power Management Design Center
Digital Power Workbench
Power Management Design Center
Power Tree Designer
Thermal-electrical Simulators for Components
STPOWER Studio
Thermal-electrical Simulators for Components
PCB Thermal Simulator
Thermal-electrical Simulators for Components
AC Switches Simulator
Thermal-electrical Simulators for Components
Rectifier Diodes Simulator
Thermal-electrical Simulators for Components
Twister Sim
Thermal-electrical Simulators for Components
TVS Simulator
Thermal-electrical Simulators for Components
Estimate
Signal Conditioning Design Tool
Active Filters
Signal Conditioning Design Tool
Comparators
Signal Conditioning Design Tool
Low side Current Sensing
Signal Conditioning Design Tool
High side Current Sensing
NFC/RFID Calculators
NFC Inductance
NFC/RFID Calculators
UHF Link Budget
NFC/RFID Calculators
NFC Tuning Circuit
You might also like...
Recommended for you
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STBB2
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STBB2J30-R | Active Product is in volume production. | CSP P 0.4 mm | Industrial | Ecopack2 | - | - | |
| STBB2JAD-R | Active Product is in volume production. | CSP P 0.4 mm | Industrial | Ecopack2 | - | - |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
You’re now leaving st.com and will be re-directed to our Partner’s website.
For the latest innovations and solutions from ST, sign up for our newsletters.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STBB2JAD-R | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| STBB2J30-R | | | distributors No availability of distributors reported, please contact our sales office |
STBB2JAD-R Active
STBB2J30-R Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors